Registration Dossier
Registration Dossier
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EC number: 400-920-6 | CAS number: 89857-06-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.025 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.25
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.003 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.25 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.1 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.01 mg/kg sediment dw
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.005 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
The toxicity potential of the substance to the aquatic organisms was evaluated by considering available data on the substance. The aquatic toxicity studies include the short-term toxicity to fish, to aquatic invertebrates, the toxicity to aquatic algae and the toxicity to microorganisms.
For the derivation of the PNECs the effect level presented below is considered:
Algae
EC50 (72h)= 25 mg/L (short-term toxicity study to algae and cyanobacteria)
Conclusion on classification
The classification of the substance is evaluated based on available experimental data on the three trophic levels:
Fish: LC50 (96h) > 1000 mg/L
Daphnia: EC50 (24h) > 531.7 mg/L
Algae: ErC50 (72h) > 25 mg/L (growth rate)
The substance is not readily biodegradable, is very water soluble, has a LogPow < 4 and is not expected to bioaccumulate. Based on available acute aquatic toxicity experimental data and on the biodegradation data in water., the substance should be classified as Aquatic Chronic 3 - H 412 according to the criteria indicated in the CLP Regulation (EC) No.1272/2008.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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